add day 24 part 1

2024/24/part1.c

@@ -0,0 +1,148 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   part1.c                                            :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tomoron <tomoron@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/07/17 23:03:36 by tomoron           #+#    #+#             */
+/*   Updated: 2024/12/24 16:05:51 by tomoron          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include "libft/libft.h"
+
+typedef struct s_op
+{
+	char name1[4];
+	char name2[4];
+	char op;
+} t_op;
+
+typedef struct s_vars
+{
+	char name[4];
+	t_op *op;
+	unsigned nb:1;
+	struct s_vars *next;
+} t_vars;
+
+
+static void add_var(t_vars **vars, char *line, t_op *op)
+{
+	t_vars *new;
+
+	new = malloc(sizeof(t_vars));
+	memcpy(new->name, line, 3);
+	new->name[3] = 0;
+	new->nb = 0;
+	if(!op)
+	{
+		while(*line != ':' && *line)
+			line++;
+		while(!ft_isdigit(*line) && *line)
+			line++;
+		new->nb = ft_atoi(line);
+	}
+	new->op = op;
+	new->next = *vars;
+	*vars = new;
+}
+
+static void get_res(char *res, char *line)
+{
+	while(*line != '>' && *line)
+		line++;	
+	line += 2;
+	memcpy(res, line, 3);
+	res[3] = 0;
+}
+
+static void handle_line(t_vars **vars, char *line)
+{
+	t_op *new_op;
+	char val[4];
+
+	new_op = malloc(sizeof(t_op));
+	new_op->op = 0;
+	memcpy(new_op->name1, line, 3);
+	new_op->name1[3] = 0;
+	while(*line != ' ' && *line)
+		line++;
+	while(*line == ' ')
+		line++;
+	if(*line == 'O')
+		new_op->op = 1;
+	if(*line == 'A')
+		new_op->op = 2;
+	if(*line == 'X')
+		new_op->op = 3;
+	while(*line != ' ' && *line)
+		line++;
+	while(*line == ' ')
+		line++;
+	memcpy(new_op->name2, line, 3);
+	new_op->name2[3] = 0;
+	get_res(val, line);
+	add_var(vars, val, new_op);
+}
+
+static t_vars *get_var(t_vars *vars, char *name)
+{
+	while(vars)
+	{
+		if(!ft_strcmp(vars->name, name))
+			return(vars);
+		vars = vars->next;
+	}
+	return(0);
+}
+
+static int get_value(t_vars *all, t_vars *var)
+{
+	if(!var->op)
+		return(var->nb);
+	if(var->op->op == 1)
+		return(get_value(all, get_var(all, var->op->name1)) | get_value(all, get_var(all, var->op->name2)));
+	if(var->op->op == 2)
+		return(get_value(all, get_var(all, var->op->name1)) & get_value(all, get_var(all, var->op->name2)));
+	if(var->op->op == 3)
+		return(get_value(all, get_var(all, var->op->name1)) ^ get_value(all, get_var(all, var->op->name2)));
+	return(0);
+}
+
+long int resolve_part1(char *input, char **split)
+{
+	(void)input;
+	t_vars *vars;
+	t_vars *tmp;
+	uint64_t res;
+	
+	vars = 0;
+	res = 0;
+	while((*split)[3] == ':')
+	{
+		add_var(&vars, *split, 0);
+		split++;
+	}
+	while(*split)
+	{
+		handle_line(&vars, *split);
+		split++;
+	}
+	tmp = vars;
+	while(tmp)
+	{
+		if(tmp->name[0] == 'z' && ft_isdigit(tmp->name[1]) && ft_isdigit(tmp->name[2]))
+		{
+			if(get_value(vars, tmp))
+				res += (uint64_t)1 << ft_atoi(tmp->name + 1);
+		}
+		tmp = tmp->next;
+	}
+	return(res);
+}